Digital protractor for measuring angles (Mathematics / Keynote)

This was a very simple but effective tool to use when teaching students about Angles. We did not alway have ready access to enough protractors during my maths lessons so I added a transparent protractor image to a Keynote slidedeck. When used with iPads it made an excellent tool as students could take photos of worksheets, shapes in our environment and even a table covered in taped lines (Washi tape was good!). We used these photos to classify types of angles and also label the measured angles. Using a device for this also meant students could zoom in if needed. The image can easily be rotated and the slide can be duplicated as many times as needed.

Attachments

digital protractor.key

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